Cutting and feeding attachment for printing presses



H. M. BARBER CUTTING AND FEEDING ATTACHMENT FOR PRINTING PR ESSES 7Original Filed Dec. 31, 1925 3 vSheets-Sheet 1 ATTORNEYS H. M.BARBERcufl'me Ami FEEDING ATTACHMENT FOR PRINTING rnsssns Original Filed Dec.:51, 1925 :s Sheets-Shet 2 INVENTOR ATTORNEYS I H. MCBARBER V UUT'I'INGAND FEEDING ATTACHMENT FOR PRINTING PRESSES Original Filed Dec. 31. 19253 Shets-Sheet 3 ATTORNEYS lll fill

till

lllf atented Dec. 27, 192i.

I ITED STATES PATET OFFICE.

HOWARD M. BARBER, F PAWCATUCK, CONNECTICUT, ASSIGNOR TO C. B. COTTRELL &SUNfil UOMPANY, 0F WESTEBLY, RHODE ISLAND, A. CORPORATION OI DELAWARE.

CUTTING AND FEEDING ATTACHMENT FUR PRINTING PRESSES.

Application filed December 31, 1925,- Serial No. 78,579. Renewed June18, 1,927.

Machines designed especially for cutting, feeding and printing looselywoven or light fabrics such as burlap or cotton often choke-up becauseof the tendency of the material to wrinkle. This frequently requires themachine to be stopped and the printing mechanism to be backed up forremoving the choke The printing mechanism can be readily backed-up butit is impossible to back up the cutting mechanism. Therefore, some meansmust be employed whereby the printing mechanism may be disconnected fromand reconnected to the cutting and feeding mechanism only when in theirproper relation to each other.

The object of this invention is to provlde novel means whereby themachine may be stopped at any point in its cycle and the printingmechanisms disconnected from the cutting and feeding mechanism so thatthe printing mechanism can be backed up to remove the choke, said meansrequiring the bringing back of the printing mechanism 'into its properrelation to the cutting and feeding mechanism'before the two mechanismscan be reconnected.

This invention more particularly includes a structure in which a clutchis provided in the driving connection between the two mechanisms, whichclutch is operated by a lever for disconnecting and reconnecting the twomechanisms, a lever controlling member also being provided, which memberis frictionally mounted on the impression cylinder shaft of the printingmechanism and manually rotatable into position to permit the clutchoperating lever to be manipulated to disconnect the two mechanisms whilethey are still in their properrelation to each other and requiring thetwo mechanisms to again be brought back into their proper relationshipbefore the clutch operating lever can be operated to reconnect the.mechanisms.

A practical embodiment of my invention is represented in theaccompanying drawings, in which Fig. 1 represents in detail sideelevation a machine including a printing mechanism and a cutting andfeeding mechanism.

Fig. 2 represents a detail longitudinal vertical section through themachine.

Fig. 3 represents an enlarged detail view showing the parts in thepositions they assume when the operating lever has been moved todisconnect the two mechanisms.

Fig. 4 represents a view of the same taken at right angles to Fig. 3.

Fig. 5 represents a detail section taken in the plane of the line VV ofFig. 3, looking in the direction of t e arrows.

The machine frame "is denoted by l.

The cutting and feeding mechanism is denoted generally b 2. The webpasses between the web fee ing cylinder 3 and its coacting feed rolls 4and from thence to the cutting mechanism shown herein as a rotary member5 and a stationary member 6 having coacting blades 7 and 8 respectively.The sheets cut from the web are fed to the printing mechanism, as, forinstance, by an endless carrier 9.

The printing mechanism in the present instance comprises the impressioncylinder 10, its shaft 11 and the four plate cylinders 12. Thisimpression cylinder may be driven in the usualmanner from any suitablesource of power, not shown herein. The impression cylinder is providedwith a gear 13 which meshes with an intermediate gear 14, which, in turnmeshes with a gear 15, carried by a cross shaft 16. The drivingconnection between the cutting and feeding mechanism and the printingmechanisms is herein shown 'as including a bevel gear 17 on the crossshaft 16, which meshes with a bevel gear 18 on the lower member 19 of aclutch, the upper member 20 of which clutch is slidably keyed on avertical shaft 21 which is provided with a bevel gear 22 which mesheswith a bevel gear 23 on the longitudinally disposed shaft 24 of thecutting and feeding,

mechanism.

This clutch is utilized for disconnecting and reconnecting the printingmechanism from and tothe cutting and feeding mechanism. The clutchoperating lever is pivoted at 25, its inner arm 26 being connected tothe movable clutch member 20 and its outer arm 27 being arranged to beengaged by a suitable retaining member 28 for removably holding thelever in either of its two. positions with the clutch closed or opened.The means which I have shown for controlling the operation of the clutchlever comprises a rod 29, attached at its lower end at 30 to the outerarm 27 of the clutch operating lever, the upper end of said rod beingbifurated until the hand wheel is rotatively-ad-- justed to bringthe oening 33 in the circular flange 32 opposite t e stud A plate is fastenedonto the end of Ltli cylinder shaft 11 for retaining the hand wheel 31and rod 29 in position thereon. 1 A hub 36 fixed to the outer end of theshaft 16 is adapted to beengaged by a bar (not, shown herein) forbacklng up the printing mechanism after it has been dis connected fromthe feeding and cutting mechanism for removing a choke; and forreturning. the printing mechanism to its proper position relative to thefeeding and cutting mechanism to permit its reconnection to the same. i

In operation: The machine is stopped as soon as a choke in the materialis formed. The wheel 31 is then turned on the impression cylinder, shaft11 until the opening 33 is brought opposite to the stud 34. This willpermit the clutch operating lever to be manipulated to open the clutchand thereby disconnect the printing mechanism from the cutting andfeeding mechanism. The printing mechanism may then be backed up toremove the choke. The printing mechanism is then returned to itsoriginal position in proper relation to the cutting and feedingmechanism, to bring the opening 33 in the flange 32 of the wheel 31opposite the stud 34 on the rod 29 of the clutch operating lever. Theclutch operating lever can then be moved to close the clutch andreconnect the two mechanisms. The machine may then be started. From theabove description it will be seen that I have provided means-whereby thecutting and feeding mechanism can be stopped at any point in its cycle.I have also provided means whereby the printing mechanism mustbe-brought into its proper relation to the cutting and feeding mechanismbefore they can be reconnected, after they have been disconnected. Thedriving connection controlling means herein described is not only usefulfor the ready elimi-' nation of chokes in the material being provided.but it is also useful for permitting the cutting and feeding o erationto be stopped and the printing mec anism disconnected-while making readyand mounting the plates.

arrangement of the several It is evident that various changes may beresorted to in the construction, form and arts without departing fromthe spirit an scope of my invention; hence, I do not wish to be limitedto the particular embodiment herein shown and described, but

What I claim is 1. A printing mechanism and a cutting andfeedingmechanism having a driving connection, and means manually movableto permit their disconnection and reconnection only when in their properrelation to each other.

2. A printing mechanism and a cutting and feeding mechanism having adriving connection, means for disconnecting and reconnecting saidmechanisms, and a member manually movable to permit the operation ofsaid means only when the mechanisms are in their proper relation to eachother.

3: A printing mechanism and a feeding mechanism having a drivingconnection includinga clutch, a clutch operating lever for disconnectingand reconnecting said mechanisms, and a lever controlling member movableinto position to permit the operation of said lever only when themechanisms are in their proper relation to.

each other.

4. A printing mechanism and a cutting and feeding mechanism having adriving connection including a clutch, a clutch operating lever fordisconnecting and reconnecting said mechanisms, and a lever controllingmember movable into position to permit the operation of said lever onlywhen the mechanisms are in their proper relation to each other. 1

5. A printing mechanism and a feeding mechanism having a drivingconnection including a clutch, said printing mechanism including theimpression cylinder and its shaft, a clutch operating lever fordisconneeting and reconnecting said mechanisms, and a lever controllingmember frictionally mounted on said cylinder shaft and manually movableinto position to permit the operation of the said lever only when themechanisms are in their proper relation to each other.

6. A printing mechanism and a cutting and feeding mechanism having adriving connection including a clutch, said printing mechanism includingthe impression cylinder and its shaft, a clutch operating lever fordisconnecting and reconnecting said mechanisms, and a lever controllingmember frictionally mounted on said cylinder shaft and manually movableinto position to permit the operation of the said lever only when themechanisms are in their proper relation to each other.

7. A printing mechanism and. a feeding mechanism having a drivingconnection ineluding a clutch, said printing mechanism including theimpression cylinder and its shaft, a clutch operating lever fordisconnecting and reconnecting said mechanisms, a'rod attached to saidlever and sl'idable on said shaft, a stud on said rod, and a hand wheelfrictionall mounted on said shaft and provided with an annular flangeengaging said stud, said flange having an opening arranged to be broughtinto position to release said stud for permitting the operation of thelever only when the said mechanisms are in their proper relation to eachother.

8. A rinting mechanism and a cutting and fee in mechanism having adriving connection lncluding a clutch, said printing mechanism includingthe impression c linder and its shaft, a clutch operating ever fordisconnecting and reconnectin said mechanisms, a rod attached to sailever and slidable on said shaft, a stud on said rod, and a hand wheelfrictionally mounted on said shaft and provided with an annular flangeengaging said stud, said flange having an opening arranged to be broughtinto position to release said stud for permitting the operation of thele ver only when the said mechanisms are in their proper relation toeach other.

In testimony, that I claim the foregoing as my invention, I have signedmy name this 29th day of December, 1925.

HOWARD M. BARBER.

